Wigner crystallization of electrons in a 2D quantum dots is reported. It proceeds in two stages: I) via radial ordering of electrons on shells and II) freezing of the inter-shell rotation. The phase boundary of the crystal is computed in the whole temperature--density plane, and the influence of quantum effects and of the particle number is analyzed.
@article{arxiv.cond-mat/0012265,
title = {Wigner Crystallization in mesoscopic 2D electron systems},
author = {A. V. Filinov and M. Bonitz and Yu. E. Lozovik},
journal= {arXiv preprint arXiv:cond-mat/0012265},
year = {2009}
}